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tangare [24]
2 years ago
13

Blake collects coins. He collected a total of 225 coins. If ​68% of the coins he collected were​ foreign, how many other coins d

id he​ collect?

Mathematics
1 answer:
Bingel [31]2 years ago
8 0

Answer: 72

Step-by-step explanation:

convert 68% to decimal:

0.68

Multiply by 225

0.68*225

= 153

Subtract:

225-153=
72

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The Total surface area of the square pyramid = 115.2 in.²

The Volume of the square pyramid = 1,024 in.³.

<h3>What is the Total Surface Area of a Square Pyramid?</h3>

The total surface are of a square pyramid is given as: TSA = SA = 1/2(P × l), where:

P = perimeter of the square base

l = slant height of the pyramid

<h3>What is the Volume of a Square Pyramid?</h3>

The volume of a square pyramid = 1/3(a³ × h), where:

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Total surface area of the square pyramid = 1/2(32 × 7.2)

Total surface area of the square pyramid = 115.2 in.²

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Width of the rectangle =  \displaystyle 3 \frac{2}{5} = \frac{17}{5} \ in.

<u>Area of the rectangle:</u>

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